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The P4C1281 and P4C1282 are 262,144-bit (64Kx4) ultra high-speed static RAMs similar to the P4C1258, but with separate data I/O pins. The P4C1281 features a transparent write operation; the outputs of the P4C1282 are in high impedance during the write cycle. The RAMs operate from a single 5V ± 10% tolerance power supply. Access times as fast as 12 nanosecon.
Full CMOS, 6T Cell
High Speed (Equal Access and Cycle Times)
– 12/15/20/25 ns (Commercial)
– 15/20/25/35 ns (Industrial)
– 20/25/35/45 ns (Military)
Low Power Operation
5V ± 10% Power Supply
P4C1281/P4C1282
ULTRA HIGH SPEED 64K X 4 cmos STATIC RAMS
Separate Inputs and Outputs
– P4C1281 Input Data at Outputs during Write
– P4C1282 Outputs in High Z during Write
Fully TTL Compatible Inputs and Outputs Standard Pinout (JEDEC Approved)
– 28-Pin 300 mil DIP, SOJ
– 28-Pin 350 x 550 mil LCC
DESCRIPTION
The P4C1281 and P4C1282 are 262,144-bit (64Kx4) ultra high-speed stat.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | P4C1281 |
PYRAMID |
STATIC CMOS RAM |
|
| 2 | P4C1256 |
PYRAMID |
HIGH SPEED 32K x 8 STATIC CMOS RAM |
|
| 3 | P4C1256L |
PYRAMID |
LOW POWER 32K x 8 STATIC CMOS RAM |
|
| 4 | P4C1256LL |
PYRAMID |
LOW POWER 32K x 8 STATIC CMOS RAM |
|
| 5 | P4C1257 |
PYRAMID |
STATIC CMOS RAM |
|
| 6 | P4C1257L |
PYRAMID |
STATIC CMOS RAM |
|
| 7 | P4C1258 |
PYRAMID |
ULTRA HIGH SPEED 64K x 4 STATIC CMOS RAM |
|
| 8 | P4C1298 |
PYRAMID |
ULTRA HIGH SPEED 64K x 4 STATIC CMOS RAM |
|
| 9 | P4C1298L |
PYRAMID |
ULTRA HIGH SPEED 64K x 4 STATIC CMOS RAM |
|
| 10 | P4C1299 |
PYRAMID |
STATIC CMOS RAM |
|
| 11 | P4C1299L |
PYRAMID |
STATIC CMOS RAM |
|
| 12 | P4C1023 |
Pyramid Semiconductor |
LOW POWER 128K x 8 SINGLE CHIP ENABLE CMOS STATIC RAM |
|